日付	始値	高値	安値	終値	前日比	出来高	時価総額	25日乖離
2026
10/02	2,288	2,303	2,261	2,270	-1.18%	146,100	-	+0.4%
10/01	2,270	2,297	2,253	2,297	+1.1%	154,200	-	+1.68%
10/01	株式分割 1→2
09/30	2,229	2,286	2,228	2,272	+2.43%	154,800	-	+0.71%
09/29	2,281	2,284	2,207	2,218	-2.83%	212,300	-	-1.51%
09/28	2,305	2,310	2,283	2,283	0%	154,200	-	+1.44%
09/25	2,275	2,293	2,265	2,283	+0.55%	139,000	-	+1.72%
09/24	2,285	2,288	2,265	2,270	+0.33%	164,400	-	+1.34%
09/18	2,293	2,300	2,260	2,263	-0.98%	136,600	-	+1.09%
09/17	2,260	2,288	2,260	2,285	+1.11%	87,600	-	+2.28%
09/16	2,250	2,295	2,250	2,260	+1.12%	118,800	-	+1.39%
09/15	2,238	2,243	2,218	2,235	+0.34%	94,400	-	+0.54%
09/14	2,218	2,243	2,213	2,228	+0.79%	86,000	-	+0.43%
09/11	2,205	2,255	2,193	2,210	-1.34%	202,800	-	-0.18%
09/10	2,263	2,283	2,228	2,240	-1.86%	134,200	-	+1.31%
09/09	2,250	2,283	2,238	2,283	+1.67%	171,000	-	+3.23%
09/08	2,248	2,283	2,228	2,245	-0.11%	184,600	-	+1.63%
09/07	2,250	2,260	2,238	2,248	+0.56%	108,600	-	+1.84%
09/04	2,248	2,253	2,223	2,235	-0.56%	141,400	-	+1.36%
09/03	2,253	2,260	2,230	2,248	+0.67%	209,800	-	+2.02%
09/02	2,270	2,290	2,225	2,233	-3.04%	230,000	-	+1.43%
09/01	2,255	2,303	2,240	2,303	+1.21%	155,600	-	+4.61%
08/31	2,285	2,290	2,260	2,275	-0.55%	115,000	-	+3.41%
08/28	2,275	2,308	2,258	2,288	+0.55%	217,400	-	+4.02%
08/27	2,260	2,293	2,253	2,275	0%	163,400	-	+3.5%
08/26	2,225	2,280	2,220	2,275	+2.25%	194,000	-	+3.55%
08/25	2,200	2,238	2,198	2,225	+0.23%	145,000	-	+1.32%
08/24	2,178	2,228	2,173	2,220	+1.95%	157,000	-	+1.19%
08/21	2,138	2,178	2,135	2,178	+0.35%	85,400	-	-0.89%
08/20	2,125	2,175	2,125	2,170	+2.36%	119,000	-	-1.5%
08/19	2,173	2,173	2,108	2,120	-2.86%	335,600	-	-3.99%
08/18	2,225	2,225	2,180	2,183	-2.02%	168,400	-	-1.33%
08/17	2,175	2,230	2,170	2,228	+2.53%	250,200	-	+0.56%
08/14	2,140	2,180	2,133	2,173	+1.05%	144,800	-	-1.96%
08/13	2,130	2,163	2,123	2,150	+1.9%	241,400	-	-3.2%
08/12	2,110	2,123	2,105	2,110	-0.12%	223,800	-	-5.34%
08/10	2,120	2,138	2,095	2,113	-0.94%	255,000	-	-5.48%
08/07	2,175	2,188	2,123	2,133	-0.35%	370,800	-	-4.8%
08/06	14:00 2027年3月期第1四半期決算短信〔日本基準〕(連結)
08/06	2,253	2,283	2,130	2,140	-4.36%	522,000	-	-4.59%
08/05	2,235	2,263	2,225	2,238	+0.67%	156,000	-	-0.38%
08/04	2,168	2,225	2,168	2,223	+1.72%	163,800	-	-0.91%
08/03	2,198	2,198	2,133	2,185	-0.68%	259,800	-	-2.59%
07/31	2,215	2,235	2,178	2,200	+0.57%	131,400	-	-1.92%
07/30	2,175	2,208	2,143	2,188	-0.57%	222,800	-	-2.43%
07/29	2,255	2,255	2,163	2,200	-1.23%	292,200	-	-1.87%
07/28	2,278	2,278	2,203	2,228	-2.3%	230,400	-	-0.69%
07/27	2,275	2,288	2,240	2,280	+1.33%	144,200	-	+1.51%
07/24	2,248	2,258	2,223	2,250	-0.33%	173,400	-	+0.18%
07/23	2,253	2,293	2,245	2,258	+0.22%	158,800	-	+0.42%
07/22	2,245	2,288	2,245	2,253	+0.11%	164,400	-	+0.2%
07/21	2,205	2,270	2,205	2,250	+2.62%	213,600	-	+0.13%
07/17	2,268	2,285	2,170	2,193	-4.26%	311,600	-	-2.51%
07/16	2,325	2,343	2,273	2,290	-1.82%	200,800	-	+1.91%
07/15	2,360	2,405	2,268	2,333	+1.86%	323,000	-	+4.04%
07/14	14:00 株式分割及び株式分割に伴う定款の一部変更並びに配当予想の修正(増配)に関するお知らせ
07/14	2,213	2,313	2,205	2,290	+3.74%	218,600	-	+2.46%
07/13	2,273	2,285	2,203	2,208	-2.32%	181,200	-	-0.96%
07/10	2,298	2,298	2,253	2,260	-0.22%	112,600	-	+1.53%
07/09	2,273	2,288	2,245	2,265	-1.31%	144,200	-	+1.98%
07/08	2,340	2,340	2,273	2,295	-2.65%	200,000	-	+3.66%
07/07	2,295	2,375	2,290	2,358	+4.31%	192,400	-	+6.72%
07/06	2,248	2,305	2,243	2,260	+1.35%	99,800	-	+2.73%
07/03	2,213	2,253	2,213	2,230	+1.25%	112,400	-	+1.36%
07/02	2,215	2,243	2,193	2,203	-0.23%	84,600	-	-0.02%
07/01	2,200	2,225	2,200	2,208	+1.49%	73,400	-	-0.02%
06/30	2,240	2,240	2,173	2,175	-1.58%	120,200	-	-1.72%
06/29	2,218	2,245	2,168	2,210	+0.68%	133,200	-	-0.36%
06/26	2,173	2,203	2,160	2,195	+1.04%	127,400	-	-1.22%
06/25	14:00 支配株主等に関する事項について
06/25	2,223	2,223	2,173	2,173	-0.91%	87,800	-	-2.49%
06/24	2,230	2,253	2,188	2,193	-1.79%	91,400	-	-1.86%
06/23	2,283	2,298	2,233	2,233	-2.93%	80,600	-	-0.29%
06/22	2,270	2,303	2,253	2,300	+1.1%	99,800	-	+2.45%
06/19	2,313	2,350	2,260	2,275	-1.41%	139,000	-	+1.25%
06/18	2,255	2,360	2,255	2,308	+2.67%	182,800	-	+2.46%
06/17	2,230	2,293	2,230	2,248	+0.67%	82,600	-	-0.51%
06/16	2,285	2,293	2,230	2,233	-2.3%	125,400	-	-1.61%
06/15	2,233	2,303	2,233	2,285	+5.66%	151,800	-	+0.22%
06/12	2,165	2,193	2,153	2,163	+0.93%	114,000	-	-5.49%
06/11	2,130	2,153	2,103	2,143	-0.7%	104,400	-	-6.85%
06/10	2,125	2,165	2,125	2,158	+0.82%	94,400	-	-6.76%
06/09	2,153	2,193	2,130	2,140	+0.35%	125,800	-	-8%
06/08	2,115	2,138	2,090	2,133	-0.81%	198,800	-	-8.79%
06/05	2,093	2,158	2,093	2,150	+2.75%	149,200	-	-8.63%
06/04	2,145	2,158	2,093	2,093	-3.35%	200,400	-	-11.48%
06/03	2,138	2,178	2,123	2,165	+1.29%	154,200	-	-8.92%
06/02	2,208	2,208	2,100	2,138	-5.32%	267,600	-	-10.45%
06/01	2,290	2,313	2,235	2,258	-1.63%	234,600	-	-5.98%
05/29	2,343	2,348	2,295	2,295	-2.03%	109,800	-	-4.69%
05/28	2,325	2,365	2,303	2,343	+0.75%	122,000	-	-2.88%
05/27	2,340	2,368	2,313	2,325	+0.76%	166,600	-	-3.61%
05/26	2,300	2,323	2,243	2,308	-0.11%	210,800	-	-4.45%
05/25	2,363	2,400	2,310	2,310	-1.07%	176,200	-	-4.47%
05/22	2,340	2,353	2,313	2,335	+0.54%	111,000	-	-3.51%
05/21	2,343	2,353	2,315	2,323	+0.65%	132,800	-	-4.07%
05/20	2,375	2,375	2,240	2,308	-3.25%	271,600	-	-4.85%
05/19	2,370	2,423	2,358	2,385	+0.85%	221,800	-	-1.89%
05/18	2,383	2,408	2,305	2,365	-1.66%	246,000	-	-2.87%
05/15	9:30 (訂正)中期経営計画2028のアップデート(数値目標の上方修正および配当方針の変更)に関するお知らせ
05/15	2,485	2,550	2,375	2,405	-3.12%	394,200	-	-1.35%
05/14	14:00 投資有価証券の売却についてのお知らせ
05/14	14:00 中期経営計画2028のアップデート(数値目標の上方修正および配当方針の変更)に関するお知らせ
05/14	14:00 2026年3月期決算短信〔日本基準〕(連結)
05/14	2,458	2,565	2,333	2,483	+0.2%	601,400	-	+1.83%
05/13	2,510	2,520	2,460	2,478	-1.1%	166,000	-	+1.79%
05/12	2,510	2,565	2,498	2,505	+0.7%	245,400	-	+3.09%
05/11	2,463	2,495	2,455	2,488	+0.81%	102,800	-	+2.54%

鉄建建設（1815）のIR情報・決算資料

2026/05/11～2026/10/02

IR情報＆株価推移

開示資料

決算

株式

チャート